Heating and ventilating system.



` B. W. DAVIS.

HEAING AND VENTILATING SYSTEM. f

APPLICATION FILED IAN. e, 1906.

1,179,406. Patented Apr. 18, 1916.

3 SHEETS-SHEET l.

B. W. DAVIS.

HEATING AND VENTILATING SYSTEM.

. APPLICATION msn 1^N.s.19o6.

3 SHEETS-SHEET 2.

,Emre/abr.

Patented Apr. 18, 1916.

B. W. DAVIS.

HEATING AND VENTILATING SYSTEM.

APPL1cAT|oN man 1AN.6.1906.

1,179,406. Patented Apr. 18,1916.

3 SHEETS-SHEET 3.

ym# m UNITED. VSTATES PATENT oEEIoE.

BENJAMIN W. DAVIS, 0F PHILLIPS, WISCONSIN.

HEATING AND VENTILATING SYSTEM.

To all 'whom it may concern:

Be it known that I, BENJAMIN W. Davis, a citizen of the United States, residing lat Phillips, county of Price, State of Wisconsin, have invented a certain new and useful Improvement in Heating and Ventilating Systems, and declare the following to be a full, clear, and exact description ofthe same,

such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates in general to systems of ventilation, and more particularly to a system in which fresh air is received at the top of a room, car, or other inclosed space and the foul air discharged adjacent the Hoor.

As the Weight of foul air causes it to fall while hot air rises, it is desirable that the circulation" in Ventilating a room or car should be from the bottom thereof to the atmosphere and from the atmosphere to the room or car near the ceiling or top thereof. In this manner the hot air at the top-of the room or other inclosed space serves to heat the fresh air as it is admitted, while the foul air is expelled when it falls tothe Hoor. It is desirable that the fresh air should be admitted in quantities Varying according to the number of persons in the inclosed space and that it should be distributed at the top of the inclosed space so that it Will descend evenly throughout the space. It is desirable, in addition to the admission of fresh air and the expulsion of foul air,that there should be a circulation of the air within the inclosed space so that it may as nearly uniform in temperature as possible, and so that the foul air will be broughtdown to the outlet and expelled.

The primary object of myainvention is to provide a Ventilating system for rooms, cars, or other inclosed spaces in which the fresh air will be admitted at the top of and evenly distributed throughout the inclosed space, in y which the foul airwill be expelled from the bottom of the inclosed space, and iu which the circulation of air within the space will be produced.

A further object of my invention is toA provide means for delivering fresh air to the interior of a room or other inclosed space Specification of Letters Patent.-

Patented Apr. 18, 1916.

Application led January 6, 1908. Serial No. 294,822.

adjacent the top thereof which will free the air from dust, cinders, and other foreign matter. "fm m A still further object of my invention is to provide a Ventilating system lwhich will be simple in arrangement, comparatively inexpensive to install, and efficient in 0peratlon.

The embodiments of my invention herein disclosed may be generally described as .consisting of a perforated false ceiling adjacent the usual ceiling of a room, or other inclosed space, an air inlet above the false ceiling, an outlet for foul air adjacent the Hoor of the inclosed space, a Hue into which the outlet discharges, means for creating a draft through such flue, and means for heating the inclosed space.

My invention will be more fully described hereinafter with reference to the .accompanying drawing in which the same is illustrated as embodied in several convenient and practical forms, and in which,-

Figure 1 is a Vertical central sectional View showing four rooms of a house each provided with a different specific embodiment of my invention; Fig. 2 a Vertical central section of still another embodiment of my invention; Fig. 3 a sectional View on line 3-3 Fig. 2; Fig. 4 a detail View of the damper and indicator therefor; Fig. 5 a sectional View on line 5-5 Fig. 2; Fig. 6 a

vertical central section of a car equippedv with my Ventilating system, and Fig. 7 a plan View of the centrifugal inlet conduit shown in Fig. 6.

The same reference characters are used to indicate similar parts in the several .Views of the drawings.

Referring more particularly to 1, reference charactersAf, A2, A3-andA indicate four adjacent rooms or other inclosed spaces each equipped with a different specific form of my Ventilating system. The room A.is heated by means of a furnace B3 located in the room A3, a hot air Hue B lead# ing to the room A. E- indicates a Vertical Hue with which the room A communicates near the bottom thereof through an outlet c'. The smoke pipe b3 of the furnace B3 may also communicate with the Hue E. The upper end of the Hue E communicates with a horizontal Hue Eilocated above the gates anoutlet Vfrom the horizontal Hue E leading to the atmosphere. f indicates a fan for blowing air` from the Hue E to the outlet F. G3 indicates a circulating shaft which communicates with the' interior ofthe room A through an opening. g" and with which the furnace .Bs communicates adjacent the bottom thereof through a pipe" g". e The room A3 is heated directly bythe furnace Bs and communicates with the flue E! -through an open-ing e2 adjacent the Hoor of the room.

The rooms A and A3A are provided with perforated partitions or false ceilings a and a2 respectively located a short distance below the usual ceilings. Fresh air is delivered to the rooms .above the falseceilings by means of inlet conduits d and d2 respectively which communicate ,with a conduit D leading from a cowl C. A'second inlet conduit for fresh air D2 leads from thecowl C. and communicates by means of conduits d2`and d* with the rooms A2 and A4 respectively immediately above perforated false ceilings a2 and a* therein.

The room A2 is provided vwith hot air through a conduit B2, a blower b2 being preferably provided for forcing the hot air into the room, ,A circulation, of the air in the -room is"'cau'sed J by extendingv a conduit g2 from a pointnear the Hoor to the conduit B2. The room A2 communicates through an' opening e2 with anoutlet Hue E2 corresponding to the outlet Hue E and communicating at its upper end with the horizontal Hue E.

The room A4 is provided with a stove'B mounted upon a platform Gr1 supported a short distance above the" Hoor. An apronl depends from the platform G* and terminates adjacent the Hoor. y

b* indicates. a smoke vpipe leading fromthe stove B to the outlet Hue E2. A conduit e* leads from the space 'below the platform G4 to the smoke pipe b.

The cowl C 'is provided' with a vane c so that the mouth of the cowl will face the direction from which'the wind is blowing. The cowl C is provided with a spiral conduitV C leading to the air inlet pipes D and D2. Openings areprovided in the outer surface of the s iral conduit Cso that dust, cinders, and ot er foreign matter will be discharged by centrifugal-l force as air passes from the cowl to the inlet pipes. v

The volume of fresh air supplied to the rooms may be'regulated by means of valves such as shown at d. In this manner the amount of fresh air supplied may be varied according to the number of persons occupying the room. I

In Figs. 2, 3, 4 and 5 I `have illustrated still another embodiment o f my invention, in .which A:s indicates a room or 'other inclosed space provided with a perforated partition or false ceiling a5 into the space above which fresh/air is delivered through the conduit d, This conduit` is preferably formed with. a downwardly-extending portion on the outside ofthe room .which serves as a trap to prevent. the escape 'of the hot air from the roominasmuch asthe cold air will have to descend against the hot air in order .to .pass from the room to the atmosphere.

Bf-indicates a radiator to which steam or hot water is delivered by the supply pipe b. A shield g5 surrounds the radiator but is open at its top and bottom in order to 'permit the free upward passage of air as it \is heated by contact with the coils of the radiator. The radiator is supported upon a platform Gr:s located above the Hoor, such platform having a downwardly-extending apron terminating adjacent the surface of the Hoor. E5 indicates an outlet Hue for discharging the foul air from the room as the fresh air is admitted. An opening e is V'formed in the Hue E5 below the platform Gr6 so that the foul air is drawn from beneath the platform Gr5 into the Hue. In order to create a draft through the Hue an extension F5 leading from the supply pipe b5 projects upwardly within the flue and is provided with an air vent valve f at its upper end. In order to permit access to the .vent valve and also for the purpose of ventilation a door f is provided in the outlet conduit. In

,order that the amount of fresh air delivered to the room may be regulated according to the number of occu'pantseofv the room, a v

damper h5 is provided within the Hue E5,

such damper having a pointer H5 which co-l operates with a scale or dial, as shownin.

Fig. 4, to indicate the position of the damper within the'Hue and consequently the extent of the passage way through the Hue which of course determines the amount of fresh air which may be drawn into the room to replace the expelled foul'air.

The flue E5 may serve to discharge the foul air from a series of rooms, a second room A6 being indicated 4below the room A? in Fig. 2.

In Fig. 6

any usual construction. a' indicates the perforated false ceiling while E7, E'I indicate outlet flues at the ends of the cars with which the interior of the car communicates e7, e1 near the Hoor. Any

force. The shape of the cowl is such that the openingv leading thereinto will face the direction toward w ich the wind is blowing. In order that the Afresh air may be forced I have illustrated'my improvedv .Ventilating system applied to a car- A7 of into the cowl, a blower suchas indicated at if desired. Any suitf may be employed provided able means (not shown) may be for actuatin the blower.

In each o the several embodiments of my invention, the fresh air is admitted to the space above a perforated false ceiling and is there distributed evenly throughout the room. As the hot air in the room rises it is obvious that the fresh air is heated thereby upon its admission to the space above the false ceiling. In each embodiment of my invention the foul air is discharged from thev room near the fioor, and as it is discharged it is replaced b the admission of fresh air. The volume o fresh air admitted and consequently the amount of foul air discharged may be regulated in the arrangement shown in the rooms A', A2 and A3 by the valves d, and in the arrangement shown in the rooms A* and A5 by regulating the positions of the dempers I-Il and h. in the outlet conduits. The draft in the outlet conduit is promoted in the various forms of the invention shown in Fig. 1 by the products of combustion discharged from the furnace or stove to the outlet conduits also by the fan f, and in the form shown in Fig. 2 by the extension of the supply conduit located within the flue. In the arrangement shown in Fig. 6 the blower fl promotes the circulation.

The scales with which the pointers of the dampers H4 in Fig. 1 and h5 in Figs. 2 and 4 register may be provided with different graduations for different temperatures as indicated in Fig. 4. When the temperature is colder the opening of the damper should be less than when it is warmer consequently I have indicated one scale with which the pointer coperates when it is below zero, another when the temperature is zero, and a third when it is above zero.

In addition to the circulation due to the discharge of foul air and admission of fresh air, a circulation of air within the room is preferably provided by suitable means, `such for instance as the flue Gr3 leading from the room A to the furnace and by the conduit Gr2 leading from the room A2 to the conduit for supplying the heated air. In the rooms A4 and A5 the circulation is promoted by the shields located around the heaters which serve to draw the cool air near the floor to the heaters and, as the air becomes heated, direct the same upwardly toward the ceiling. This circulation of air within the rooms serves not only to produce uniform temperature, but also to direct the foul air toward the floor where it will be discharged.

The inlet pipes d', d2, d3 and d* shown in Fig. 1 are preferably bent downwardly so that portions thereof are in lower planes than their discharge ends in order that the warm air may be prevented from passing outwardly through the conduits D and D2 when there is no wind blowing. The downwardly curved portions of these inlet pipes serve as traps in the same manner as above explained in connection with the depending inlet conduits d shown in Fig. 2.

It will be observed that by supporting the heater upon a platform above the Hoor and providing an apron depending around the latform, the foul air is prevented from rislng into contact with the heater and being thereby put into circulatio`n in a room, but is directed to the opening in the outlet flue.

From the foregoing description it will be observed that I have invented an improved system of ventilation by means of which a room, car, or other inclosed space will be supplied with fresh air to replace discharged impure air, and by means of which the atmosphere within the inclosed space will be kept in circulation.

Having now fully described my invention, what I claim as new and desire to secure by Letters Patent isz 1. In a heating and Ventilating system for a room or other inclosed space, the combination with an inlet conduit for cool fresh air communicating with said space near the top thereof, of a heater within said space, means for supporting said heater above the bottom of said space, and an outlet flue having an opening leading therein from below said heater.

2. In a heating and Ventilating system for a room or other inclosed space, the combination with an inlet conduit for fresh air communicating with said space near the top thereof, means for evenly distributing the air from said conduit across said space, of a heater within said space, a platform for supporting said heater above the floor of the room, an apron depending from said platform, and an outlet flue having an opening leading thereinto from beneath said platform.

3. In a heating and Ventilating system hfor a room or other inclosed space, a horizontal partition close to the ceiling thereof and having perforations therein, a conduit leading into the space between the ceiling and the partition, sa'id conduit having its other end open to the surrounding air at a lower point than the said partition, an outlet conduit leading from the bottom of the said space, a heater for the inclosed space, and a pipe leading from said heater terminating in said outlet conduit for supplying fluid pressure thereto to accelerate the outflow of air.

4. In a heating and Ventilating system for a room or other inclosed space, vthe combination with an air inlet conduit for cool fresh air communicating with said space near the top thereof, a horizontal perforated partition extending across said space adjacent the top thereof below said inlet conduit for In testimony whereof, I sign this specidistributing the cool air throu hout said cation'in the presence of two witnesses.

space, a heater located within sai space ad- BENJAMIN W. DAVIS. jacent the bottom thereof, and an outlet Hue Witnesses: 5 having an opening leading thereinto at a GEO. L. WILKINSON,

horizontal level below the top of said heater. C. A. MULLEN. 

